A/V Output

I was looking at the specs for A/V output on the Touch and see that it's limited to 480i and 576i, no HD at all. Does anyone know if this is a hardware limitation or can this be enhanced through firmware upgrades?

Second, given that the signal is interlaced is there any reason to use Component cables versus Composite? I suspect Component will be marginally better in terms of video output but will it be enough to notice?

Component should be just marginally better... probably not a noticeable difference from using composite, unless your tv happens to be so amazing that any slight difference in detail would show up.

I would think that it is probably possible to upgrade that with firmware... but not really sure. Chances are though that this will not happen, there may be licensing issues, but the real reason is that it would then push it towards a different market segment which im sure apple is trying to stay away from... much in the same way they crippled apps like the calendar.